Apparatus for removing superfluous metallic coating from sheet metal.



.No. 810,851. PATENTED JAN. 23, 1906.

0. S. FELLOWS & A. E. HOPKINS. APPARATUS FOR REMOVING SUPERFLUOUS METALLIC COATING FROM SHEET METAL.

APPLICATION FILED APR. 28, 1905.

4 SHEETS-SHEET l.

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flaw-91,1 I W No. 810,851. PATENTED JAN. 23, 1906 0. s. FELLOWS & A. E. HOPKINS.

APPARATUS FOR REMOVING SUPERPLUOUS METALLIC COATING FROM SHEET METAL. APPLICATION FILED APR.28, 1905.

4 SHEETS-SHEET 2.

Fig.6.

PATENTED JAN. 23, 1906. KINS.

0. S. FELLOWS & A. E. HOP APPARATUS FOR R EMOVING SUPERFLUOUS METALLIC COATING PROM SHEET METAL. APPLICATION FILE-D APR.28, 1905.

4 SHEETS-SHEET 3.

No. 810,851. PATENTED JAN. 23, 1906.

I 0. S. FELLOWS & A. E. HOPKINS. APPARATUS FOR REMOVING SUPBRFLUOUS METALLIC COATING FROM SHEET METAL. APPLICATION FILED APB..28, 1905.

. lic coatin' has set or hardened on the sheet UNITED STATES PATENT OFFICE.

oLIN s. FELLOWS AND ARCHIBALD E. HOPKINS, or' MIDDLETOWN,

' NEW YORK.

Specification of Letters Patent.

Patented Jan. 23, 1906.

Application filed April 28, 1996. Serial No. 257,952.

Toall whom it may coricern:

. Be it known that we, OLIN S. FELLOWS and AROHIBALD E. HOPKINS, citizens of the United States,'residing at Middletown,0range county, and State of New York ,have invented certain new and useful Improvements in A paratus for Removing Superfluous Metal ic.

Coating from Sheet Metal, of which the following is a s ecification sufficient to enable; others skille 'inthe art to which the inven-' tion appertains to make and use the same. Our improvements relate to means forremoving excess 'of metallic coating from sheet metal, particularly What is known as list,

from the selvage edges of sheet-metal plates for the purpose of recovering and saving such excess of metallic coating and also for the purpose of rendering the plates more valuable by making the selvage edges available for use.

Our treatment of the plates is supplemental, and after the list or excess of metalmetal in t e ordinary course of the manufacture of commercial plate, as set forth in our applications for'Letters Patent, Serial No. 226,441, filed September 29, 1904, and Serial No. 230,994, filed November 1,1904, to which reference may be had for a general understandin of the state of the art.

The istinguishing feature of our present invention consists, essentially, in mani ulating and treating the sheet metal for t e removal of. the excess of metallic coating while the plates are bent or curved to a prescribed degree for the pur ose of rendering them uniform in sha e an preventing or counteracting the ten ency of the sheet metal to buckle or Warp under the heat to which the selvage edges of the plates are subjected in reducin the list or excess of metallic coating to a flui condition preparatory to its removal.

vThe invention consists, primarily, in mechanism for bending the ,plates and feeding them in that position in such manner that their selvage edges are first, presented to means for heating the same to melt the .metallic excess in situ and then to means for removing such .li uated excess from the edges of the plates, suf stantially as hereinafter set forth, and, secondarily, the invention includes certain other features in the construction and arrangement of parts hereinafter described and claimed specifically.

In the accompanying drawings, Figure 1 is a plan of our apparatus; Fig. 2, avertical sectional elevation taken upon plane of line 2 2, Fig. 1. V Fig. 3 is a front view of the apparatus; Fig. 4,.a rear view of the same; Fig. 5, a side elevation; Fig. 6, a sectional elevation upon plane offline 6 6, Fig. 1; Fig. 7, an enlargedwieW iIIustrating the removal of the means of brushes; Fig. 8,'a ustrating' the removal of the' liquated list b similar view ili list by afluid-blast; Fig. 9, a detail view'of one of the tension-levers.

there are three important essentialsnamely, a convexly-curved plate support orfeed of uniform radius movable upon the axis of said curve, means concentric to said axis for heating the edge of a plate presented upon said convex feed, and means also concentric to said axis for forcibly removing the li uated excess of metallic coating from the eated ed e of the plate.

11 order to simplifythe apparatus and render the operation continuous, we prefer to use a rotatable drum or cylinder asa support upon which to feed the plates to. the devices for heating and removing the list, although this is not indispensable, since it is obvious which the convex feed might be made to re- In carrying out our invention practically ciprocate instead of to rotate, as shown and described herein, would be within the spirit.

and intent of invention.

In the drawings the stationary framework of the apparatus consists of two side members or standardsA A, united by cross-rods a,

c and by a stationary axle a, upon which latter-the sleeve-axle d of the hub D is mounted.

.P P P are pulleys attached to shafts p p p, which are mounted in bearings 11 p 1), Suppojrkted adjustably upon the side members A and the periphery of the drum D, power being a plied to a driving-pulley? on one of the s afts to cause the belts and drum to travel in the directions indicated by the arrows.

Adjoining one peripheral edge of the drum D and concentric thereto are two gas-burner pi es G G or equivalent means of heating the e ge of a sheet-metal plate protruding over said edge of the drum, as illustrated in detail in Figs. 7 and 8. Beyond this heating device is arranged means M for removing the liquated list or excess of metallic coating from the edge of the sheet metal, such means consistin of a pair of rotatable concavoconvex brushes, as shown in Fig. 7, of a fluidblast, as illustrated in Fig. 8, or of any other suitable expedient that will insure the displacement of the superfluous metallic coating, which may be precipitated into a ce-mpartment or conduit C, from which it-may be withdrawn in any convenient manner.

From the foregoing the operation" of removing list from the selvage e efof sheet metal, as tin from sheet-iron, wil Y readily understood. A plate h, of so-called commercial tin, for instance, is fed in between the feeding-belts Band the eriphery of the drum D with its selvage edge ft projecting beyond the edge of the drum upon the side upon which the means for melting and removing the list 'i are situated. The tension maintained upon the feed-belts B causes them to press and hold the body of the sheet-metal plate firmly against the peri hery of the drum D, to the surface of whic it conforms, its selva e edge protruding concentrically, so that sai selvage edge is carried between the gas-jets or equivalent means of imparting the necessary degree of heat to reduce the list or excess of tin to a fluid state, in which condition it is subjected to the means for removing it from the sheet metal. 4

The curved concentric form of the plate while under treatment counteracts or neutralizes the tendency of the plate to warp or buckle under the heat to which its edge is subjected and insures a true and perfect alinement of position with relation to the list melting and removing means.

It is to be noted that by the use of the endless belts in conjunction with the rotatable drum we attain a flexible means of binding the plates upon the holder, and in this connection the automatic tension is important in that it admits of and compensates for the insertion and removal of plates and also provides for a continuous operation of the parts in one direction. Thus the device may be said to automatically receive the plates and hold them during treatment, discharging them automatically after the removal of the list.

The concentric arrangement of the means for liquating and removing the list with rela-, tion to the curved plate-holder is the distinguishin feature of our invention, by means of whic we are enabled to attain accurate results, not only by reason of the avoidance of buckling or warping in the plate, but also because a perfect alinement of parts is as-- sured, the edge of each plate treated following the same path and receiving the same treatment.

What we claim as our invention, and desire to secure by Letters Patent, is-

1. In ap aratus for removing superfluous metallic coating from sheet metal, the combination of curved plate-feeding mechanism and means concentric thereto for melting and removing the excess of metallic coating from the plate.

2. In apparatus for removing superfluous metallic coating from sheet metal, the combination of convex plate-feeding mechanism and means concentric thereto for melting and removing the excess of metallic coating from the plate.

3. In apparatus for removing superfluous metallic coating from sheet metal, the combination of curved plate-feeding mechanism, flexible means for holding a sheet-metal plate thereto and means concentric to said curved feed mechanism for melting and removing the excess of metallic coating from the late.

4. In apparatus for removing super uous metallic coating from sheet metal, the combination of means for bending a plate thereof and means for melting and removing the excess of metallic coating from said plate while so bent.

5. In apparatus for removing superfluous metallic coating from sheet metal, the combination of means for bending a plate of coated sheet metal and means for heating the edge of said plate and removing the list therefrom while the plate is so bent, for the purpose described.

6. In apparatus for removing superfluous metallic coating from sheet metal, the combination of means for bending a plate of coated sheet metal, means for heating said bent metal plate to melt the excess of metallic coating thereon, and means for removing the liquated excess of metallic coating from the plate while the latter is so bent, for the purpose described.

7. In apparatus for removing superfluous metallic coating from sheet metal, the combination of curved plate-feeding mechanism, means concentric thereto for heating an edge of the plate to melt the list or excess of metallic coating thereon, and means, also concentric to the feed mechanism, for removing the liquated excess of metallic coating from the heated edge of the plate for the purpose set forth.

8. In apparatus for removing superfluous metallic coating from sheet metal, the combination of curved plate-feeding mechanism, flexible means for holding a sheet-metal plate thereon, means concentric to said feed mechanism for heating the edge of the plate 'to melt the list or excess of metallic coating thereon, and means, also concentric to the feed mechanism, for removing the liquated a plate so held on said rotatable drum, for

excess of metallic coating from the heated edge of the plate for the purpose set forth.

9. In apparatus for removing superfluous metallic coating from sheet-metal, a curved plate-holder of uniform radius, -means concentric to said curved plate-holder adapted to heat an ed e of a plate held on said holder and remove t e list therefrom, and means for moving said holder to subject the edge of the plate to the action of the list heating and removin means, for the purpose described.

10. n apparatus for removin superfluous metallic coating from sheet meta a rotatable drum, means for holding a coated sheetmetal plate upon and, against'the' periphery of said drum, and means concentric to said drum for melting and removing list or excess of metallic coating from the edge of a plate so held on said rotatable drum, for the purpose described.

11. In apparatus for removin superfluous metallic coating from sheet meta a rotatable drum, flexible means for holding a coated sheet-metal plate upon and against the periphery of said drum, and means concentric to said drum for meltin and removing list or excess of metallic coating from the edge of the purpose described.

12. In apparatus for removin superfluous metallic coating from sheet meta a rotatable drum and an endless belt traveling with said drum and arranged to hold a coated sheetmetal plate agalnst the peripher of said drum, and means concentric to said drum for melting and removing list or excess of meso held on said rotatable drum, for the purpose described.

14. In apparatus for removin superfluous metallic coatin from sheet meta a rotatable drum, an end ess belt traveling with said' drum and arran ed to hold a coated sheetmetal 'plate against the periphery thereof,

means for automaticall tension of said belt, an to said drum for melting and removin list or excess of metallic coating from the e e of a plate so held on'said rotatable drum, or the purpose described.

15. In apparatus for removing superfluous metallic coating from sheet metal, a rotatable maintaining the drum, a plurality of endless belts travelin with said drum and arranged to hold a coate sheet-metal plate against the periphery theremeans concentric.

of, means for automatically maintaining-the tension of said belts, and means concentric to said drum for melting and removin list or excess of metallic coating from the e e of a plate so held on said rotatable drum, or the purpose described.

16. In apparatus for removing superfluous metallic coating from sheet metal, a curved holder of uniform radius, means for auto: matically receiving and holdin a coated metallic'plate upon saidcurved older, means concentric to said holder adapted to heat the edge of said metallic plate and remove the list therefrom, and means for moving said holder'with relation to the means for melting and "removing forth.

17. In apparatus for removing superfluous metallic coating from sheet meta a rotatable drum, means for automatically receiving and holding a coated sheet-metal plate upon and against the periphery of said drum, and means concentric to said drum for melting and removing list or excess of'metallic coating from the edge of a plate so held on said rotatable drum, for the purpose described.

18. In apparatus for removing superfluous metallic coating from sheet metal, a movable curved plate-holder of uniform radius, a se- -ries of gas-jets arranged concentric to the path of the holder for the purpose of heating the edge of a plate held thereon, and means, also concentric to the curved plate-holder, arran ed to remove the liquated excess of metal ic coating from the edge-of the plate for the purpose described.-

19. In apparatus for removing superfluous metallic coating from sheet metal, a movable curved plate-holder of uniform radius, two series of gas-j ets concentric to the path of the .holder, one opposed to ,the other, and ar-' the'list, for the purpose set ran ed to heat opposite sides of the edge of a p ate held on said holder, and means also concentric to the curved plate-holder arranged to remove the liquated excess of metallic coating from the edge of the plate for the purpose described.

20. In apparatus for removin superfluous metallic coating from sheet meta a rotatable drum, means for holding a coated sheetmetal plate against the periphery of said drum, a series of gas-jets arranged concentric to one edge of isa1d drum, for-the purpose of heating the edge of a plate held thereon, and means, also concentrlc to the edge of said drum, arran ed to remove the li uated excess of meta lic coatin from the e ge of the plate for the pfirpose escribed.

, 21. In apparatusfor removin superfluous metallic coating from sheet meta -,-a rotatable drum, means for holding acoated sheetmetal plate against the periphery of'said trio to one edge of the said drum and opposed to each other-for the purpose of heatdrum, two series of gas-jets arranged concen- IIO ing opposite sides of the edge of a plate held on said drum, and means, also concentric to the edge of the said drum, arranged to remove the liquated excess of metallic coating from the edge of the plate for the purpose described.

22. In apparatus for removing superfluous metallic coating from sheet metal, a curved plate-holder of uniform radius, means for olding a coated metallic plate thereon, concentric means for heating one of the edges of said late to melt the 11st thereon, and rotatab le concavo convex brushes arranged with their 0p osite sides concentric with the curved plateolder and in the ath of the edge of the plate held'thereon, or the purpose described.

23. In apparatus for removin superfluous metallic coating from sheet meta a rotatable drum, means for holding a coated sheetmetal plate against the periphery of said drum, concentric means for heating one of the edges of said plate to melt the list thereon, and rotatable concavo-convex brushes arranged with their op osed sides concentric wlth the periphery 0 the drum and in the path of the edge of the plate held thereon, or the purpose described.

1). WM. GLRDNEK: GEO. MIA'r'ri 

